SEGMENT INFORMATION (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020 USD ($)	Sep. 28, 2019 USD ($)	Sep. 26, 2020 USD ($) segment	Sep. 28, 2019 USD ($)	Dec. 28, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment			4
Total Sales	$ 758.2	$ 772.3	$ 2,126.5	$ 2,499.8
Gross Profit	221.6	201.9	595.2	670.5
Operating Expenses	131.6	128.9	385.1	416.3
(Gain) Loss on Divestiture of Businesses	0.0	0.2	(0.1)	(45.2)
Asset Impairments	0.0	0.0	4.3	10.0
Total Operating Expenses	131.6	129.1	389.3	381.1
Income from Operations	90.0	72.8	205.9	289.4
Depreciation and Amortization	32.9	33.9	98.8	100.4
Capital Expenditures	9.3	21.1	29.7	77.3
Assets	4,479.4		4,479.4		$ 4,430.7
Commercial Systems
Segment Reporting Information [Line Items]
Total Sales	218.5	214.8	593.8	703.3
Assets	1,258.2		1,258.2		1,198.5
Industrial Systems
Segment Reporting Information [Line Items]
Total Sales	138.8	143.8	389.0	437.4
Assets	826.1		826.1		802.8
Climate Solutions
Segment Reporting Information [Line Items]
Total Sales	234.0	230.9	622.3	762.1
Assets	876.4		876.4		878.3
Power Transmission Solutions
Segment Reporting Information [Line Items]
Total Sales	166.9	182.8	521.4	597.0
Assets	1,518.7		1,518.7		$ 1,551.1
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total Sales	27.1	24.2	81.3	78.9
Intersegment Eliminations | Commercial Systems
Segment Reporting Information [Line Items]
Total Sales	(14.5)	(10.8)	(43.2)	(34.7)
Intersegment Eliminations | Industrial Systems
Segment Reporting Information [Line Items]
Total Sales	(7.4)	(8.0)	(23.2)	(27.8)
Intersegment Eliminations | Climate Solutions
Segment Reporting Information [Line Items]
Total Sales	(4.6)	(4.2)	(13.0)	(13.1)
Intersegment Eliminations | Power Transmission Solutions
Segment Reporting Information [Line Items]
Total Sales	(0.6)	(1.2)	(1.9)	(3.3)
Operating Segments | Commercial Systems
Segment Reporting Information [Line Items]
Total Sales	233.0	225.6	637.0	738.0
Gross Profit	61.4	53.5	154.5	184.3
Operating Expenses	36.1	36.8	107.8	121.8
(Gain) Loss on Divestiture of Businesses		0.1	(0.1)	(39.4)
Asset Impairments			2.8	6.7
Total Operating Expenses	36.1	36.9	110.5	89.1
Income from Operations	25.3	16.6	44.0	95.2
Depreciation and Amortization	7.9	8.3	24.5	26.1
Capital Expenditures	3.2	6.8	8.5	24.2
Operating Segments | Industrial Systems
Segment Reporting Information [Line Items]
Total Sales	146.2	151.8	412.2	465.2
Gross Profit	31.2	23.7	78.7	75.3
Operating Expenses	24.6	26.0	69.2	82.2
(Gain) Loss on Divestiture of Businesses		0.0	0.0	0.1
Asset Impairments			0.2	0.9
Total Operating Expenses	24.6	26.0	69.4	83.2
Income from Operations	6.6	(2.3)	9.3	(7.9)
Depreciation and Amortization	6.0	6.5	17.9	18.2
Capital Expenditures	1.7	4.2	6.0	18.1
Operating Segments | Climate Solutions
Segment Reporting Information [Line Items]
Total Sales	238.6	235.1	635.3	775.2
Gross Profit	69.1	64.2	175.9	209.7
Operating Expenses	29.9	26.5	85.9	86.2
(Gain) Loss on Divestiture of Businesses		0.1	0.0	(6.0)
Asset Impairments			1.3	1.3
Total Operating Expenses	29.9	26.6	87.2	81.5
Income from Operations	39.2	37.6	88.7	128.2
Depreciation and Amortization	5.0	5.1	14.7	14.5
Capital Expenditures	1.8	6.8	8.0	19.4
Operating Segments | Power Transmission Solutions
Segment Reporting Information [Line Items]
Total Sales	167.5	184.0	523.3	600.3
Gross Profit	59.9	60.5	186.1	201.2
Operating Expenses	41.0	39.6	122.2	126.1
(Gain) Loss on Divestiture of Businesses		0.0	0.0	0.1
Asset Impairments			0.0	1.1
Total Operating Expenses	41.0	39.6	122.2	127.3
Income from Operations	18.9	20.9	63.9	73.9
Depreciation and Amortization	14.0	14.0	41.7	41.6
Capital Expenditures	$ 2.6	$ 3.3	$ 7.2	$ 15.6